Abstract
Wireless sensor networks can collect real-time structure health information and perform a set of activities on transportation infrastructure (e.g., bridge and road) to predict their end-of-life and maintain it in operable conditions. However, before wireless sensors are deployed in the field, it is important to test the sensing and communication performance through the simulation. In this paper, propagation and scattering of wireless signals of WSN are simulated in the space-time domain by the finite-difference time-domain (FDTD) methods. Artificial noises are simulated by additive white Gaussian noise (AWGN) and introduced to the clean signal. Our simulation method can help designing an optimized deployment strategy of sensor networks for structure health monitoring.